Improved stench-trap



FRANCIS--1.WILLIAMS;0Fr sY'RAcUsE, New Yon-K.

Letters Patent No.'81,7`19, dated September 1, 1868.

Iurnovnn smsen-Tsar.

dlp Santilli nennt tu itftlpn'eitets tant mounting gni ni iigejszime.

TO ALL WHOM IT .MAYCONCERNr 'Be it known that I, FRANCIS II. WILLIAMS, of Syracuse, inthe county of Onondaga, and State of New York, haveI invented a new and improved stench-Trap; and I do hereby-declare that the following is a. full, clear, and exact description thereof, reference being had to the accompanying drawing, makinga part of this specification, in which- Figure 1 is a sectional view, taken diametricallythrough the4 improved trap, and showing its` connections with a waste-pipe and sewer.

This invention relates to certain novel improvements on sink-traps, which are designed to serve as means for preve'ntingthe rising of noxious gases fronrsinks, cesspools, water-closets, and other conduits and receptacles for carrying oif or retaining iilth. l i v i T-he nature of my invention consists in the applicatiorrwfo a receiving or waste-pipe, leading into a sewer .or other receptacle, of an'enlarged valve-chnmbenofa globular or otherA shape, which is constructedwith collars upon opposite sides of it,- adapted for receiving andholdingthe sections composing said receiving and 1- waste-pipe, one of which collars is constructed so as to `serve as a valve-seat and bridge-holder, for sustaining and keeping -in place the stem of a spring-trap valve, as will be hereinafter explained.

The invention also consists in so constructing a spring-trap valve, and applying it to said valve-chamber, i

that the spring which acts to hold the valve to its seat shall be enclosed within an yinverted cup, and protected from being clogged or. rapidly destroyed by corrosion, as will be hereinafter explained,

I also provide forwater-p'acking the trap-valve so as to eectually prevent the'insinuation of gas. through it; At' the same time, this valveis allowed to open to permit the escape of liquids and other substances, when the pressure or weight uponit is greater than its spring will sustain. y

Provision is also made for obtaining access to the interior of the valveichambe for renewing or repairing the valve, and for' cleaning out this chamber when necessary.' V

Provision is also made for preventing the accumulation of.solid or liquid substances upon the valve, or

within the collaragainst which the valve has its seat, all of which will`b'e understood from the following description. f y

To enable vothers'skilled in the art to understand my invention, I will describe its .construction and operation.

' In the accompanying drawing,`D D represent two sections of waste-pipe, leading from asink into a sewer,

L, and connected to collars which "'areformed upon an enlargedvalve-chamber, N. This valve-chamber may be made of' any 4suitable capacity, and it is'composed of Vtwo hemispherical sections Al, united by a lapped" joint, at K, so'that these sections can be separated when it is desired to have access to its interior. I prefer to` construct thevalve-chamber N ofl the spherical forin shown in the drawing', as such form will not aifordia lodgment for sfolid matters. Still, any other suitable form may be adopted. K

` The escape-opening through the bottom of the `valvecl1nmber N is surrounded erte'riorlyfby a collar,

for receiving a lower section, D, of thew'astepipe, and allowing thisl pipe to be firmly securedto such section. y

Diametrically opposite the escape-hole is the inlethole,which isl surrounded by a collar vthat ext-ends both inside and outside ofthe said valve-chamber, as shown at B; The external portion of this collar or tube B is adapted for receiving and having secured to it the upper section, D, of the lwaste-pipe, and the internal por tion of the collar B is adapted to serve as a valve-seat for-a valve, I. v

The valve I is constructed either flat orV crowning, and is held up tightly against the lower end of the collar B, hy means'of a spring, g, which may be made of coiled'wire or of India.` rubber, and which 'biears upon a bridge-bar, Il., through`w'hich the valve-stem e passes freely. The bridge-bar It is secured diametricallyacross the upper end of the collar B, so as to hold the stern e, of the valve, centrally therein, und allow it to play up' and-down. In practice, I shall bevel the upper edge ofthe said bridge, so as to givcit a knife-edge, for .preventing a 4lodgxnent of solid matters upon it. l l

The upper end of the valve-stem e is enclosed by a. cap or inverted cup,f, which is secured to the bridge bar h, so as to enclose the spring-g, which holds the valve up to itsseat. lhc upper end of the cupf may be made conical or crowning,l for the purpose of preventing solid matters from lodging upon it.

It is intended to have the valve Iheld up to its seat by the spring g, with a force which will allow a small Y quantity of liquid to remain in the collar B, above the valve, in order to form a water-packing, but if thc weight of liquid above the valves exceed agiven amount, then it is intended that the valve shall opcnnd allow the liquid to escape into chamber N.

The cupj'is intended to serve as a means for preventingA substances from clogging the spring g and valvestem, and also to form an air-chamber, to prevent liquid from rising in it and corroding the spring and upper` part of the valve-stem.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Avalve-chamber, N, which is constructed with a tubular valve-seat, B, and a pipe-connecting collar, C, substantially as and for the purposes described.

2. The construction of valve-chamber N, of sections A A, one of which has an internally and .externallyprojecting collar, B, and the other an externally-projecting collar, C, substantially as and for the purposes described.

3. Valve I, applied to the inner end of collar B, and held up to` its seat by a spring, g, which rests upon a bridge, 7L, applied to the upper end of said collar, in combination with the chambery N, substantially as described.

4. 'lhe inverted cupf, applied over the Lipper end of `valve-stem e, so as to protect the spring g, substantially as described.

5. ,crowning or convex valve I, which is suspended by a. spring, g, and applied to alcollar, B, of the chamber N,`substantia-lly as described.

I". H. WILLIAMS.

.Witnesscsz LOUIS F. SMITH, R. A. BONTA. 

